161929850882 has 32 divisors (see below), whose sum is σ = 263712552768. Its totient is φ = 74290968576.

The previous prime is 161929850857. The next prime is 161929850893. The reversal of 161929850882 is 288058929161.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145448 + ... + 587379.

It is an arithmetic number, because the mean of its divisors is an integer number (8241017274).

Almost surely, 2^161929850882 is an apocalyptic number.

161929850882 is a deficient number, since it is larger than the sum of its proper divisors (101782701886).

161929850882 is a wasteful number, since it uses less digits than its factorization.

161929850882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733010.

The product of its (nonzero) digits is 4976640, while the sum is 59.

The spelling of 161929850882 in words is "one hundred sixty-one billion, nine hundred twenty-nine million, eight hundred fifty thousand, eight hundred eighty-two".